kvm-ioctls-v0.9.0

Added

• Support for accessing and controlling the Time Stamp Counter on x86 platforms
  through the get_tsc_khz and set_tsc_khz functions.

Changed

• Updated create_vm on aarch64 to create a VM fd from the KVM fd using the
  host's maximum IPA size.

kvm-ioctls-v0.8.0

v0.8.0

Added

• Support for specifying VM type (an opaque platform and architecture specific
  constant) when creating a VM (KVM_CREATE_VM ioctl) via the
  Kvm::create_vm_with_type function.

Changed

• Now depends on kvm-bindings >=0.4.0 to support use of a newer vmm-sys-utils
  dependency.

v0.6.1

Changed

• Enforced the vmm-sys-util dependency to v0.7.0.

kvm-ioctls-v0.7.0

Added

• Support for the system API that returns the maximum allowed vCPU ID
  (KVM_CAP_MAX_VCPU_ID).
• Support for KVM_MEMORY_ENCRYPT_OP.

Fixed

• [#119]: Disallow invalid
  number of cpuid entries to be passed to get_supported_cpuid and
  get_emulated_cpuid.

Changed

• [#123]: Updated
  create_vcpu to use u64 as the parameter for the number of vCPUs.

kvm-ioctls-v0.6.0

Added

• Support for the vcpu ioctls: KVM_SET_GUEST_DEBUG, KVM_KVMCLOCK_CTRL, and
  KVM_GET_REG_LIST.
• Support for the vm ioctl KVM_GET_DEVICE_ATTR.
• Support for the device ioctl KVM_HAS_DEVICE_ATTR.
• Support for VcpuExit::Debug.
• Support for enabling vcpu capabilities using Vcpu::enable_cap.
• Support for checking Hyper-V (HypervSynic and HypervSynic2), MSI
  (MsiDevid), and IPA Size (ArmVmIPASize) capabilities.
  using kvm.check_extension.
• Support for checking the VM capabilities via Vm::check_extension.
• Create a VM with flexible IPA size using Kvm::create_vm_with_ipa_size.

Removed

• Removed Kvm::new_with_fd_number. The same functionality is offered by the
  Kvm FromRawFd
  trait implementation.

Changed

• The VM ioctl unregister_ioevent now correctly unregisters the events that
  correspond to the data match passed as a parameter.
• The SystemEvent Vcpu Exit now also contains the relevant type and flags.
• Updated get_dirty_log such that it does not assume the page size is 4K,
  but instead reads it using libc::sysconf.

kvm-ioctls-v0.5.0

Added

• Support for the vcpu ioctls KVM_GET/SET_VCPU_EVENTS and KVM_GET_DIRTY_LOG on aarch64.
• Support for the vcpu ioctl KVM_IRQ_LINE.

kvm-ioctls-v0.4.0

Added

• Support for unregistering ioeventfds through KVM_IOEVENTFD.

Changed

• Functions working with event FDs now require
  vmm_sys_util::eventfd::EventFd in their interface instead of
  RawFd.
• Functions working with FAM structs kvm_msr_list and kvm_msrs, were
  changed to work with their respective safe counterparts MsrList and
  respectively Msrs.
• Now exporting kvm_ioctls::Error type definition so that users of this
  crate can create their own wrapping errors without having to know the
  Error type used internally by this crate.
• No longer exporting kvm_ioctls::Result. Users of this crate should
  not have to use kvm_ioctls::Result outside the crate.
• kvm_ioctls::Error now works with errno::Error instead of io::Error.

Removed

• CpuId safe wrapper over FAM struct kvm_cpuid2. The safe wrapper is
  now provided by the kvm_bindings crate starting with v0.2.0.
• KVM_MAX_MSR_ENTRIES and MAX_KVM_CPUID_ENTRIES. Equivalent constants
  are provided by the kvm_bindings crate starting with v0.2.0.

kvm-ioctls-v0.3.0

Added

• Support for setting vcpu kvm_immediate_exit flag
• Support for the vcpu ioctl KVM_GET_CPUID2
• Support for the vcpu ioctl KVM_GET_MP_STATE
• Support for the vcpu ioctl KVM_SET_MP_STATE
• Support for the vcpu ioctl KVM_GET_VCPU_EVENTS
• Support for the vcpu ioctl KVM_SET_VCPU_EVENTS
• Support for the vcpu ioctl KVM_GET_DEBUGREGS
• Support for the vcpu ioctl KVM_SET_DEBUGREGS
• Support for the vcpu ioctl KVM_GET_XSAVE
• Support for the vcpu ioctl KVM_SET_XSAVE
• Support for the vcpu ioctl KVM_GET_XCRS
• Support for the vcpu ioctl KVM_SET_XCRS
• Support for the vm ioctl KVM_GET_IRQCHIP
• Support for the vm ioctl KVM_SET_IRQCHIP
• Support for the vm ioctl KVM_GET_CLOCK
• Support for the vm ioctl KVM_SET_CLOCK
• Support for the vm ioctl KVM_GET_PIT2
• Support for the vm ioctl KVM_SET_PIT2
• Support for the vcpu ioctl KVM_GET_ONE_REG

Changed

• Function offering support for KVM_SET_MSRS also returns the number
  of MSR entries successfully written.

kvm-ioctls-v0.2.0

• Fix bug in KvmRunWrapper. The memory for kvm_run struct was
  not unmapped after the KvmRunWrapper object got out of scope.
• Return proper value when receiving the EOI KVM exit.
• Add support for KVM_ENABLE_CAP.
• Add support for KVM_SIGNAL_MSI.
• Mark set_user_memory_region as unsafe.

kvm-ioctls-v0.1.0

First release of the kvm-ioctls crate.

The kvm-ioctls crate provides safe wrappers over the KVM API, a set of ioctls used for creating and configuring Virtual Machines (VMs) on Linux. The ioctls are accessible through four structures:

• Kvm - wrappers over system ioctls
• VmFd - wrappers over VM ioctls
• VcpuFd - wrappers over vCPU ioctls
• DeviceFd - wrappers over device ioctls

The kvm-ioctls can be used on x86_64 and aarch64. Right now the aarch64 support is considered experimental.